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Green 288-pin DDR4 DIMM module with black chips and silver label

A-Tech

A-Tech 16GB DDR4 2133MHz CL15 1.2V Desktop RAM

SKU CH-X1QM-2B69M

16GB DDR4 2133MHz CL15 desktop memory module for compatible AMD and Intel systems

  • Total capacity16 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • ChipsetMajor Brand Chips
  • CAS latencyCL15
  • Tested speed2133
  • Rated voltage1.2 V
  • 16GB single module doubles capacity for demanding workloads
  • DDR4 2133MHz speed accelerates data transfer rates
  • CL15 latency tightens timing for responsive performance
  • 2V operation reduces power draw versus older standards
  • 288-pin DIMM fits standard desktop motherboard slots

16GB DDR4 2133MHz Desktop Module

This 16GB DDR4 DIMM operates at 2133MHz with CL15 latency and 1.2V standard voltage. It uses a 288-pin unbuffered non-ECC design built with major brand chips. The single module suits desktop systems that accept DDR4 2133 memory.

Replaces Kingston KVR21N15D8/16 and HX421C14FBK2/32

The module is tested as a direct equivalent for several Kingston part numbers including KVR21N15D8/16, HX421C14FBK4/64, KVR21N15D8K2/32, HX421C14FBK2/32 and KCP421ND8/16. Each unit undergoes quality assurance testing for dependable performance.

Suits DDR4 2133 desktop upgrades only

This memory fits desktops that support DDR4 2133MHz unbuffered non-ECC DIMMs. Systems requiring ECC, registered modules, or different DDR generations will not accept it. Verify your platform specifications before purchase.

How it compares

Measured against everything we stock in Desktop RAM, at today’s prices. Recalculated every night.

Price $75.99
Cheaper than about 55% of the 3,647 comparable items (median $90.99).
Total capacity 16 GB
Typical for this category: the median of 3,251 items is 16 GB.
Price per GB $4.75 per GB
Cheaper than about 76% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameA-Tech
Total capacity16 GB
Performance
Rated speedDDR4 2133 (PC4 17000)
Processor
ChipsetMajor Brand Chips
Memory
CAS latencyCL15
Tested speed2133
ECC supportNo
Buffer typeUnbuffered
Power
Rated voltage1.2 V
Compatibility
Recommended forAMD & Intel Compatible

Questions about this item

Does this 16GB DDR4 module need any firmware updates or periodic cleaning to keep running reliably?

No firmware updates are required for this unbuffered DIMM; it operates at standard 1.2V with major-brand chips and only needs occasional dust removal from the 288-pin contacts.

What limit appears first when this CL15 2133MHz kit runs at full load for hours?

The memory controller's maximum supported frequency of 2133 MHz is the hard ceiling; latency stays at CL15 and voltage remains at 1.20V, so no further throttling occurs.

How much heat and noise does this single 16GB stick produce during all-day operation?

It runs silently with no moving parts; at 1.2V the thermal output is low enough that standard case airflow keeps temperatures well within normal DDR4 limits.

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